13 papers
LIGO A: Detector Design and Science Prospects Beyond A+
L. Sun, K. Kuns, B. J. J. Slagmolen +1153
We present the LIGO A detector concept, an upgrade for the LIGO observatories based on room-temperature interferometers beyond the fifth observing run (O5). Building on th…
Constraining Gravitational Wave Memory with Hierarchical Inference
Keefe Mitman, Maximiliano Isi, Will M. Farr
With the multitude of gravitational wave observations that have been made in the past ten years, probing the dynamical and nonlinear nature of strong gravity is becoming more and m…
Evidence for mass-dependent spin subpopulations in GWTC-4
Asad Hussain, Maximiliano Isi, Aaron Zimmerman
While the origin of merging black-hole binaries observed in gravitational waves remain uncertain, different formation channels are expected to leave distinct imprints on their obse…
The impact of waveform systematics and Gaussian noise on the interpretation of GW231123
Sophie Bini, Krzysztof Król, Katerina Chatziioannou +1
GW231123 is an exceptional gravitational-wave event consistent with the merger of two massive, highly-spinning black holes. Reliable inference of the source properties is crucial f…
Measuring spin precession from massive black hole binaries with gravitational waves: insights from time-domain signal morphology
Simona J. Miller, Maximiliano Isi, Katerina Chatziioannou +2
Robustly measuring binary black hole spins via gravitational waves is key to understanding these systems' astrophysical origins, but remains challenging -- especially for high-mass…
GW231123 ringdown: interpretation as multimodal Kerr signal
Harrison Siegel, Nicole M. Khusid, Maximiliano Isi +1
GW231123 is a short-duration, low-frequency gravitational wave signal consistent with a binary black hole coalescence and dominated by the merger-ringdown regime due to the high ma…